Question

1. Viết dưới dạng

a, M= x²-100

b,N=x³+1000

c,P=125x³-1

d,Q=8x³-27

Answer 1

a) \(M=x^2-100=\left(x-10\right)\left(x+10\right)\)

b) \(N=x^3+1000=\left(x+10\right)\left(x^2-10x+100\right)\)

c) \(125x^3-1=\left(5x-1\right)\left(25x^2+5x+1\right)\)

d) \(8x^3-27=\left(2x-3\right)\left(4x^2+6x+9\right)\)

Answer 2

a, \(M=x^2-100=\left(x-10\right)\left(x+10\right)\)

b, \(N=x^3+1000=\left(x+10\right)\left(x^2-10x+100\right)\)

c, \(P=125x^3-1=\left(5x-1\right)\left(25x^2+5x+1\right)\)

d, \(Q=8x^3-27=\left(2x-3\right)\left(2x+3\right)\)